Name requested: Agaricus acutusPersoonia 2 (1): 3, 5.
Homotypic synonym: Cortinarius acutusMycologia 45 (6): 898. 47 (4): 572. Mycology and Phytopathology [as Микология и Фитопатология] 1 (2): 152. 5 (1): 86, 87. 9 (4): 295, 297. Persoonia 2 (1): 3. 9 (3): 337. 10 (2): 172. Sydowia 26 (1-6): 113.